ART DECO DIAMOND, ONYX & CULTURED PEARL PENDANT-BROOCH The articulated pendant of geometric design set with 185 small round & baguette diamonds weighing approx 1.45 cts, accented further with bands of black onyx & 3 cultured pearl drops, in 18kt white gold, supported on an 18kt white gold chain.

ART DECO DIAMOND, ONYX & CULTURED PEARL PENDANT-BROOCH The articulated pendant of geometric design set with 185 small round & baguette diamonds weighing approx 1.45 cts, accented further with bands of black onyx & 3 cultured pearl drops, in 18kt white gold, supported on an 18kt white gold chain.

Art Deco Onyx, diamond, enamel, gold  and platinum pendant watch.  Agassiz, Switzerland

Art Deco Onyx, diamond, enamel, gold and platinum pendant watch. Agassiz, Switzerland

An Art Deco Natural Pearl and Diamond Sautoir, Circa 1925. The stylised pendant suspending a natural pearl, highlighted by two brilliant-cut diamonds, decorated by eight button-shaped natural pearls, to a necklace composed of geometric link millegrain-set with circular-cut diamonds, the diamonds, mounted in platinum, detachable to form two necklaces.

An Art Deco Natural Pearl and Diamond Sautoir, Circa 1925. The stylised pendant suspending a natural pearl, highlighted by two brilliant-cut diamonds, decorated by eight button-shaped natural pearls, to a necklace composed of geometric link millegrain-set with circular-cut diamonds, the diamonds, mounted in platinum, detachable to form two necklaces.

JADEITE AND DIAMOND BROOCH. Designed as a textured branch consisting of two diamond-set leaves supporting six highly translucent jadeite cabochons of emerald green color, highlighted by rose-cut diamonds, the articulated cabochons further suspending tassels of collet-set rose-cut diamonds, mounted in 18 karat blackened gold.

JADEITE AND DIAMOND BROOCH. Designed as a textured branch consisting of two diamond-set leaves supporting six highly translucent jadeite cabochons of emerald green color, highlighted by rose-cut diamonds, the articulated cabochons further suspending tassels of collet-set rose-cut diamonds, mounted in 18 karat blackened gold.

Art Deco Diamond Onyx Enamel and Jade pin.

Art Deco Diamond Cabochon Jade Pendant Brooch

Robert Koch - An Art Deco gold, platinum, diamond and onyx clip, Frankfurt M und Baden Baden, circa 1925. #RobertKoch #ArtDeco #clip

Robert Koch - An Art Deco gold, platinum, diamond and onyx clip, Frankfurt M und Baden Baden, circa 1925. #RobertKoch #ArtDeco #clip

Lot 135 from Bonhams Autumn Sale: a pair of art deco natural pearl and diamond pendent earrings, circa 1925 (estimate: £150,000-£200,000).

Lot 135 from Bonhams Autumn Sale: a pair of art deco natural pearl and diamond pendent earrings, circa 1925 (estimate: £150,000-£200,000).

A JADEITE AND DIAMOND PENDENT NECKLACE  The pendant set with a carved jadeite ruyi of icy colourless material and very good translucency, accented by jadeite cabochons of brilliant emerald green colour and very good translucency and brilliant-cut diamonds, suspended from a length adjustable black cord, mounted in 18k white gold, ruyi approximately 39.2 x 31.0 x 8.6 mm, 56.0 cm long

A JADEITE AND DIAMOND PENDENT NECKLACE The pendant set with a carved jadeite ruyi of icy colourless material and very good translucency, accented by jadeite cabochons of brilliant emerald green colour and very good translucency and brilliant-cut diamonds, suspended from a length adjustable black cord, mounted in 18k white gold, ruyi approximately 39.2 x 31.0 x 8.6 mm, 56.0 cm long

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